Home / 144,914.48-217,434.28-78,401.46

Finding the Fourth Proportional to 144,914.48, 217,434.28 and 78,401.46

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Solution

The fourth proportional to 144,914.48, 217,434.28 and 78,401.46 is: 117,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,914.48 : 217,434.28 = 78,401.46 : x
  2. Step 2: Convert to fraction form
    144,914.48/217,434.28 = 78,401.46/x
  3. Step 3: Cross multiply
    144,914.48x = 217,434.28 × 78,401.46
  4. Step 4: Simplify right side
    144,914.48x = 17,047,165,006.05
  5. Step 5: Solve for x
    x = 17,047,165,006.05/144,914.48
  6. Step 6: Final answer
    x = 117,636.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.